/*
*  Copyright 2019-2020 Zheng Jie
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package me.zhengjie.service.impl;

import me.zhengjie.domain.Friends;
import me.zhengjie.utils.ValidationUtil;
import me.zhengjie.utils.FileUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.repository.FriendsRepository;
import me.zhengjie.service.FriendsService;
import me.zhengjie.service.dto.FriendsDto;
import me.zhengjie.service.dto.FriendsQueryCriteria;
import me.zhengjie.service.mapstruct.FriendsMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.LinkedHashMap;

/**
* @website https://el-admin.vip
* @description 服务实现
* @author ...
* @date 2020-11-08
**/
@Service
@RequiredArgsConstructor
public class FriendsServiceImpl implements FriendsService {

    private final FriendsRepository friendsRepository;
    private final FriendsMapper friendsMapper;

    @Override
    public Map<String,Object> queryAll(FriendsQueryCriteria criteria, Pageable pageable){
        Page<Friends> page = friendsRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(friendsMapper::toDto));
    }

    @Override
    public List<FriendsDto> queryAll(FriendsQueryCriteria criteria){
        return friendsMapper.toDto(friendsRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public FriendsDto findById(Integer relationId) {
        Friends friends = friendsRepository.findById(relationId).orElseGet(Friends::new);
        ValidationUtil.isNull(friends.getRelationId(),"Friends","relationId",relationId);
        return friendsMapper.toDto(friends);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public FriendsDto create(Friends resources) {
        return friendsMapper.toDto(friendsRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(Friends resources) {
        Friends friends = friendsRepository.findById(resources.getRelationId()).orElseGet(Friends::new);
        ValidationUtil.isNull( friends.getRelationId(),"Friends","id",resources.getRelationId());
        friends.copy(resources);
        friendsRepository.save(friends);
    }

    @Override
    public void deleteAll(Integer[] ids) {
        for (Integer relationId : ids) {
            friendsRepository.deleteById(relationId);
        }
    }

    @Override
    public void download(List<FriendsDto> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (FriendsDto friends : all) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("读者编号 ", friends.getReaderId());
            map.put("朋友的读者编号 ", friends.getFriendId());
            map.put("状态 0:未通过 1:已拒绝 2:通过 ", friends.getStatus());
            map.put("是否启用 1启用 0未启用", friends.getIsEnable());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}